Aerius Photonics proposes to develop a high speed, high sensitivity focal plane array (FPA) assembly consisting of a low noise InGaAs photodiode array and a fast readout integrated circuit (ROIC). The FPA will be integrated into a laser vibrometer system and used for the detection of landmines and Improvised Explosive Devices (IEDs). In Phase I, Aerius will define the system requirements for the ROIC unit cell. Aerius will also design and simulate the different architectural options for the ROIC unit cell aiming at selecting the best architecture. The requirements for the InGaAs detector array will be defined as well as the approach for hybridization with the ROIC. Plans will be established for testing the FPA in Phase II in an actual vibrometer. In Phase I Option, Aerius will begin the design and layout of the ROIC unit cell, based on the selected ROIC architecture. This SBIR effort will lead to the development of an imaging laser vibrometer with the largest FPA to date.